No need recognize load from a fixed argument slot as re-materializable. LiveIntervalAnalysis already handles it as a special case.

llvm-svn: 47522

llvm-svn: 47521

Recognize loads of arguments as re-materializable first. Therefore if isReallyTriviallyReMaterializable() returns true it doesn't confuse it as a "normal" re-materializable instruction.

llvm-svn: 47520

llvm-svn: 47519

llvm-svn: 47518

llvm-svn: 47517

llvm-svn: 47516

instead of TokenKind because of signedness issues with MSVC and enums.

Patch from Argiris Kirtzidis.

llvm-svn: 47515

llvm-svn: 47514

llvm-svn: 47513

The patch fixes some debug assertions that the msvcrt throws:

1)
-    if (isprint(value) && value < 256) {
+    if (value < 256 && isprint(value)) {

isprint() does an assertion check of its own for value < 256; check value before calling it to prevent it.


2)
-    Stmt->Names.push_back(std::string(&data[0], data.size()));
+    if (data.size() == 0)
+      Stmt->Names.push_back(std::string());
+    else
+      Stmt->Names.push_back(std::string(&data[0], data.size()));

If data.size() == 0 then data[0] throws "out of range" assertion.

llvm-svn: 47512

llvm-svn: 47511

llvm-svn: 47510

llvm-svn: 47509

To support multiple return values, now ret instruction supports multiple operands instead of one aggregate operand.

llvm-svn: 47508

llvm-svn: 47507

confluence points the liveness information for variables (Decls) and NOT
block-level expressions.

llvm-svn: 47506

stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.

llvm-svn: 47504

llvm-svn: 47503

llvm-svn: 47502

llvm-svn: 47501

llvm-svn: 47500

Really really bad local register allocator bug. On X86, it was never using ESI, EDI, and EBP because of a bug in RALocal::isPhysRegAvailable(). For example, when
it checks if ESI is available, it then looks at registers aliases to ESI. SIL is marked -2 (not allocatable) but isPhysRegAvailable() incorrectly assumes it is in use and returns false for ESI.

llvm-svn: 47499

--analyze-function option to analyze specific functions.

llvm-svn: 47498

--analyze-function option to dump/view the CFGs of specific functions.

llvm-svn: 47497

llvm-svn: 47496

llvm-svn: 47495

llvm-svn: 47494

llvm-svn: 47493

llvm-svn: 47492

appear in a file.

llvm-svn: 47491

llvm-svn: 47489

llvm-svn: 47488

llvm-svn: 47485

the way through.  It is now used for codegen.

llvm-svn: 47484

llvm-svn: 47483

llvm-svn: 47482

llvm-svn: 47481

llvm-svn: 47480

llvm-svn: 47479